NASA’s Hubble Space Telescope has been providing amazing images of the universe since April 1990 and has led to remarkable discoveries. NASA’s James Webb Space Telescope is the next-generation telescope that will peer even deeper into space and unveil even more mysteries. Both of these extraordinary telescopes are now the topics of two free e-Books available from the Apple iBookstore.

The books are written on a high-school level and can be viewed using iPads with the free iBooks app. Because they’re about two NASA space telescopes, the Hubble and its successor, the Webb, the books complement each other.

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The e-books are highly interactive and include image galleries and video. Tracy Vogel of the Space Telescope Science Institute in Baltimore, Md., is part of the design team that put them together. “For instance, the readers can watch a galaxy collision simulation video, manipulate a telescope model to see it from all angles, or flip through a gallery of planetary nebulae—all right there on the page,” Vogel said.

Direct to Non-interactive Versions (PDF)

Gary Price (gprice@mediasourceinc.com) is a librarian, writer, consultant, and frequent conference speaker based in the Washington D.C. metro area. Before launching INFOdocket, Price and Shirl Kennedy were the founders and senior editors at ResourceShelf and DocuTicker for 10 years. From 2006-2009 he was Director of Online Information Services at Ask.com, and is currently a contributing editor at Search Engine Land.